Best test cream application spot

Hey guys,new to TRT. I got prescribed test/arimidex cream 10/100 daily. They are recommeding to put it under the biceps,under armpit area.I've researched best areas to put it and they recommend inside of forearms,upperarms or chest area.Is under the biceps okay as well?

I've always heard most of it converts to DHT, but I've never had a DHT test to prove it when I applied to my scrotum. I have a feeling that gel is absorbed at a really high rate on the scrotum, and a full dose would probably convert to e2 (from raising your blood concentration of testosterone too high too quickly). A small amount would increase my libido a bit, but a full dose would bring about all the negative e2 signs. Testim 1% always worked the best, much better than Androgel 1.62%. I've always absorbed the gel like a sponge, so regular application of Testim 1% had my test level well north of 1000ng/dL, but also gave me some e2 sides (anxiety, itchy nips), and made my chest turn bright red like a sun burn from the high RBC. If you don't absorb the gel as well, I've heard flanks, scrotum, inner thighs, tops of feet, and inner forearms are the best.